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Square D HDL36125AA - Molded Case Circuit Breaker 125A 600V 3P

Square D
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Square D HDL36125AA is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in industrial power distribution systems. It features a 125A current rating and a 600V AC voltage rating, housed within a compact H-frame measuring 163 mm H x 104 mm W x 86 mm D and weighing 5 lb. This thermal-magnetic breaker with long-time and instantaneous trip functions is compliant with UL, CSA, NEMA, NOM, and IEC 60947-2 standards, ensuring robust performance. Its 3-pole, feed-thru configuration with an 18kA interrupting rating at 480V and a -2 to 70 °C operating range makes it suitable for protecting three-phase motors, panelboards, and industrial control equipment.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection, Long Time & Instantaneous Trip
  • Voltage Rating: 600V AC
  • Current Rating: 125A
  • Dimensions: 6.4 in (163 mm) H x 4.09 in (104 mm) W x 3.4 in (86 mm) D
  • Standards: UL, CSA, NEMA, NOM-003-SCFI-2000, IEC 60947-2
  • Applications: Industrial Power Distribution, Motor Protection, Panelboards
  • Switch Type: Circuit Breaker
  • Configuration: 3-Pole, Feed-Thru Connection
  • Temp Rating: 28-158 °F (-2-70 °C)
  • Phase: 3
  • AIC Rating: 18kA @ 480V AC
  • Connection: Feed-Thru
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: Long Time and Instantaneous Trip
  • Frame Size: H Frame
  • Wire Size: AWG 14 to AWG 3/0 (Aluminium/Copper Terminal)
  • Certification: UL, CSA, NOM
  • Family: Powerpact
  • Item Subcategory: Molded Case


Product Identification
  • UPC: 785901553304
  • GTIN: 00785901553304